Centre for Mathematics and Algorithms for Data (MAD)

Websitehttps://mathematics-and-algorithms-for-data.github.io/

27 results

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2025

Fast PET Reconstruction with Variance Reduction and Prior-Aware Preconditioning
Ehrhardt, M. J., Kereta, Z. & Schramm, G., 5 Jun 2025, arXiv.
Research output: Working paper / Preprint › Preprint

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Gaussian Process Diffeomorphic Statistical Shape Modelling Outperforms Angle-Based Methods for Assessment of Hip Dysplasia
Paul, A., Grammatopoulos, G., Rambojun, A., Campbell, N. D. F., Gill, H. S. & Shardlow, T., 5 Jun 2025, arXiv.
Research output: Working paper / Preprint › Preprint

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Hadamard--Langevin dynamics for sampling the l1 prior
Cheltsov, I., Cornalba, F., Poon, C. & Shardlow, T., 9 Feb 2025, (Submitted) arXiv, (ArXiv e-prints).
Research output: Working paper / Preprint › Preprint
Sparse Randomized Approximation of Normal Cycles
Paul, A., Campbell, N. & Shardlow, T., 2 Mar 2025, (Unpublished) arXiv.
Research output: Working paper / Preprint › Preprint
2024
Accelerated Convergent Motion Compensated Image Reconstruction
Delplancke, C., Thielemans, K. & Ehrhardt, M. J., 14 Oct 2024, arXiv.
Research output: Working paper / Preprint › Preprint

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An adaptively inexact first-order method for bilevel optimization with application to hyperparameter learning
Salehi, M. S., Mukherjee, S., Roberts, L. & Ehrhardt, M. J., 16 Nov 2024, arXiv.
Research output: Working paper / Preprint › Preprint

Open Access
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An Adaptively Inexact Method for Bilevel Learning Using Primal-Dual Style Differentiation
Bogensperger, L., Ehrhardt, M. J., Pock, T., Salehi, M. S. & Wong, H. S., 9 Dec 2024, arXiv.
Research output: Working paper / Preprint › Preprint

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A Primal-dual algorithm for image reconstruction with ICNNs
Wong, H. S., Ehrhardt, M. J. & Mukherjee, S., 16 Oct 2024, arXiv.
Research output: Working paper / Preprint › Preprint

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42 Downloads (Pure)
Bilevel Learning with Inexact Stochastic Gradients
Salehi, M. S., Mukherjee, S., Roberts, L. & Ehrhardt, M. J., 16 Dec 2024, (Submitted) arXiv.
Research output: Working paper / Preprint › Preprint
Complex extension of optical flow and its practical evaluation for undersampled dynamic MRI
Ehrhardt, M. J. & Mauritz, M., 17 Dec 2024, arXiv.
Research output: Working paper / Preprint › Preprint

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Coupling Analysis of the Asymptotic Behaviour of a Primal-Dual Langevin Algorithm
Burger, M., Ehrhardt, M. J., Kuger, L. & Weigand, L., 28 May 2024, (Submitted) arXiv, 33 p.
Research output: Working paper / Preprint › Preprint

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Efficient gradient-based methods for bilevel learning via recycling Krylov subspaces
Ehrhardt, M. J., Gazzola, S. & Scott, S. J., 11 Dec 2024, arXiv.
Research output: Working paper / Preprint › Preprint

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Identifying Optimal Launch Sites of High-Altitude Latex-Balloons using Bayesian Optimisation for the Task of Station-Keeping
Saunders, J. E., Saeedi, S., Hartshorne, A., Xu, B., Şimşek, Ö., Hunter, A. J. & Li, W., 16 Mar 2024, arXiv.
Research output: Working paper / Preprint › Preprint

Open Access
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Learning efficient and provably convergent splitting methods
Kreusser, L. M., Lockyer, H. E., Müller, E. H. & Singh, P., 14 Nov 2024.
Research output: Working paper / Preprint › Preprint

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Sparse Nystrom Approximation of Currents and Varifolds
Paul, A., Campbell, N. & Shardlow, T., 14 Jun 2024, (Submitted) arXiv.
Research output: Working paper / Preprint › Preprint
Stochastic Multiresolution Image Sketching for Inverse Imaging Problems
Perelli, A., Schonlieb, C.-B. & Ehrhardt, M. J., 13 Dec 2024, arXiv.
Research output: Working paper / Preprint › Preprint

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16 Downloads (Pure)
2023
Compressed online Sinkhorn
Wang, F., Poon, C. & Shardlow, T., 8 Oct 2023, arXiv.
Research output: Working paper / Preprint › Preprint

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23 Downloads (Pure)
Creating Multi-Level Skill Hierarchies in Reinforcement Learning
Evans, J. B. & Şimşek, Ö., 16 Jun 2023, arXiv, 19 p.
Research output: Working paper / Preprint › Preprint

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Explaining Reinforcement Learning with Shapley Values
Beechey, D., Smith, T. M. S. & Şimşek, Ö., 9 Jun 2023, arXiv.
Research output: Working paper / Preprint › Preprint

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Mathematical modelling of droplet evaporation and surfactant effects on pesticide leaf uptake
Delos Reyes, J., Shardlow, T., Delgado-Charro, B., Webb, S. & White, J., 23 Jan 2023, (Submitted) 16 p.
Research output: Working paper / Preprint › Preprint
Performance of data-driven inner speech decoding with same-task EEG-fMRI data fusion and bimodal models
Wilson, H., Wellington, S., Liwicki, F. S., Gupta, V., Saini, R., De, K., Abid, N., Rakesh, S., Eriksson, J., Watts, O., Chen, X., Golbabaee, M., Proulx, M. J., Liwicki, M., O'Neill, E. & Metcalfe, B., 19 Jun 2023, arXiv.
Research output: Working paper / Preprint › Preprint

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Resource-Constrained Station-Keeping for Helium Balloons using Reinforcement Learning
Saunders, J. E., Prenevost, L., Şimşek, Ö., Hunter, A. & Li, W., 2 Mar 2023, arXiv.
Research output: Working paper / Preprint › Preprint
Stochastic networks theory to model single-cell genomic count data
Bartlett, T. E., Chandna, S. & Roy, S., 19 Oct 2023, (Submitted) arXiv.
Research output: Working paper / Preprint › Preprint

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2022

Mathematical modelling of adjuvant-enhanced active ingredient leaf uptake of pesticides
Reyes, J. D., Shardlow, T., Delgado-Charro, M. B., Webb, S. & White, K. A. J., 20 Oct 2022.
Research output: Working paper / Preprint › Preprint

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70 Downloads (Pure)
On the convergence and sampling of randomized primal-dual algorithms and their application to parallel MRI reconstruction
Gutierrez, E. B., Delplancke, C. & Ehrhardt, M. J., 25 Jul 2022.
Research output: Working paper / Preprint › Preprint

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Stochastic Primal-Dual Three Operator Splitting with Arbitrary Sampling and Preconditioning
Tang, J., Ehrhardt, M. & Schönlieb, C.-B., 2 Aug 2022.
Research output: Working paper / Preprint › Preprint

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98 Downloads (Pure)
2021
A temporal multiscale approach for MR Fingerprinting
Cortinhas, S., Golbabaee, M. & Ehrhardt, M. J., 30 Mar 2021, (arXiv).
Research output: Working paper / Preprint › Preprint

Open Access
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